Function 'kotlin.js.js' is to be redesigned in JS IR backend,
partially because it is a hard feature to support.
Current implementation is unstable and can cause problems around
inlining and name generator. Luckily most of its use-cases
can be covered by simpler features like dynamic expressions and
external declarations.
Thus we are reducing it's usage in stdlib to make IR backend more
stable in current state. JavaScript features that can't be covered by dynamic expression are
implemented in 'jsOperators.kt' file respectively for each backend:
- 'internal inline' function which calls 'js' function inside for current
pre-IR backend
- 'internal' function with '_hack' parameters for JS IR backend which will be
later intinsicified in a compiler
Move kotlin-stdlib-js project and the sources specific to the current backend to 'stdlib/js-v1' directory,
but leave sources that can be shared with the new IR backend in the common 'stdlib/js' location
with exception for 'stdlib/js/src/generated', which is used exclusively for current backend.
This simplifies sourceset configuration when building stdlib with the new backend.
Ilya Gorbunov